Governor Tom Vilsack says ethanol is the state of Iowa’s answer to rising gasoline prices. Vilsack says he’ll sign a bill that would give gas stations a tax incentive for selling lots of ethanol-blended fuel.If ethanol is over 60 percent of a single gas station’s sales, then that station would qualify for the tax incentive. Would that tax break be passed along to consumers, though? Vilsack says as stores increase their volume of ethanol, there’s an incentive to pass along the benefits. But, he says the incentive would be left up to the retailer.The bill cleared both the House and Senate this week, but hasn’t reached Vilsack’s desk yet because a Senator put the bill temporarily in limbo with a procedural move.